4.8 Programming and debugging on your own board

Outcome 8 of 12 in domain 4 · Digital and microcontrollers

SWD, boot UART, native USB; breakpoints, reading registers.

My targets

I declare:

Explain what SWD, a boot UART and native USB each allow, and which the chip offers.
Flash your own board with an SWD probe or through the bootloader, and recover a "bricked" chip.
Set a breakpoint, read a variable and a peripheral register while it runs.
Output traces over UART or SWO without slowing what you observe, and say when the debugger lies (real time).
Organize a project without a "ready-made" environment: toolchain, linker script, vendor library, and know what each brings.
Diagnosis: a peripheral that does nothing despite the code, find in the debugger the forgotten clock or enable bit.